Cosmo Kramer remains one of Seinfeld's most popular and iconic characters, but one fan theory speculates that he may have been secretly married in the show. Kramer began life on Seinfeld as Jerry's eccentric shut-in neighbor, but over the course of the early seasons, he became an integral part of the comedian's inner circle. By the time Seinfeld ended in 1998, Kramer had become every bit as synonymous with the show as the titular comedian.
After being introduced in season one as a shut-in, Kramer underwent perhaps more character development than any of the other members of Seinfeld's main cast. He started out on the show as little more than an eccentric neighbor with no inclination to adhere to societal norms, but after bonding with Jerry, George, and Elaine, Kramer is soon seen engaging with the outside world once more. He even goes on to show that he's perhaps not as socially inept as he initially seemed, often finding more success in his romantic life than Jerry or George.
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One fan has proposed (via Reddit) that Kramer was married before the show's pilot, and his early shut-in status was a direct result of his failed marriage. The theory speculates that Kramer had felt trapped by marriage, and when it ended he was left traumatized and unwilling to leave his home — partly evidenced by Kramer not being in some early Seinfeld episodes in which the other characters aren't seen in Jerry's apartment. Their theory mostly hinges on an interaction that takes place between Kramer and Jerry in the season 7 episode «The Engagement».
In Seinfeld season 7, episode 1, Jerry and George make a pact to start taking their lives seriously, which results in George getting engaged to his
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